8
JB INDUSTRIES • ELIMINATOR OPERATING MANUAL • 800.323.0811 • SALES@JBIND.COM • JBIND.COM
TROUBLESHOOTING AND REPAIR
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Pump hard to start
A. Power cord not plugged in securely
B. Motor switch not on
C. Pump temperature below 30°F
D. Inconsistent line voltage
E. Pump has not been shut down properly
F. Low Battery (DV-142-FLEX or
DV-85-FLEX)
A. Plug power cord in securely
B. Turn motor switch to ON position
C. Warm up pump to 30°F and turn motor switch on
D. Line voltage must be within 10% of 115v
E. Follow proper start up and shut down procedures
F. Check battery charge; re-charge if neccessary
Step 1: Remove 1/4" cap
Step 2: Move blank-off valve to OPEN position
Step 3: Turn pump on
Step 4: Run 2 to 3 seconds and close blank-off valve
PROPER START UP AND SHUT DOWN PROCEDURES:
Step 1: Close blank-off valve
Step 2: Open gas ballast valve
Step 3: Run 2 to 3 seconds
Step 4: Shut pump off
Step 5: Close gas ballast valve
NOTE: See previously discussed topic Breaking Vacuum
Pump won’t pull deep vacuum
In order for your pump to pull to a near
perfect vacuum, oil must be clean and
moisture-free throughout evacuation.
A. Contaminated oil
B. Oil level too low
C. Air leak in system being evacuated
D. Pump inlet fittings missing or not tightened
E. Coupler slipping
F. Missing or damaged seals or o-rings
A. Change oil
B. Add oil
C. Locate and repair leak(s)
D. Clean or replace o-ring
E. Tighten coupler set screws to flats of cartridge and motor
F. Replace damaged seals or o-rings
Step 1:
With isolation valve closed, start pump. Oil level should be to the top
of the oil level line embossed on the front of the pump’s cover. Just a
teaspoon low can affect the ultimate vacuum.
Step 2: Flush pump and refill with fresh oil. See Cleaning and Testing Pump
on page 4 for review.
Step 3: Check all connections to pump and system for damaged or missing
o-rings. If brass adapters are being used, make sure copper gaskets
are in place.
Oil drips from point where
shaft enters the pump housing
Damaged shaft seal Replace shaft seal
Pump shuts down and will
not start
A. Thermal overload may be open A. Step 1: Disconnect pump from system
Step 2: Wait approximately 15 minutes for motor to cool
Step 3: Turn pump on
Step 4: If it cycles off again, return for repair
Pump cycles on and off from a
completely cold start and then
runs smoothly
A. Oil backed up into cartridge and was being
cleared out
B. Pump has not been shutdown properly
Step 1: Remove 1/4" cap
Step 2: Turn pump on
Motor just hums
If pump has been dropped, the armature in
motor may be out of alignment with the motor’s
bell housing
Step 1: Set pump on bench with motor standing up
Step 2: Loosen the four motor bolts
Step 3: Shake motor and re-tighten motor bolts
Step 4: Start pump
If this doesn’t work, the pump most likely will need to be sent in for repair.
Motor runs, but no suction
A. Flexible coupler is either broken or loose Step 1: Set pump on bench with motor standing up
Step 2: Look between motor and pump housing from the bottom to see if the
flexible part of the coupler is split or broken. If it is broken, see Flexible
Coupler
section of this booklet. If the coupler is not broken, the coupler
may be spinning on either the shaft to motor or cartridge.
Step 3: Go to product support at www.jbind.com for cartridge replacement
instructions. These instructions are good for replacing: flexible couplers,
motors, shaft seals, and cartridges.
To Next Page
Loading...
Need help?
General
